First of all, all of this is done as root. I've been trying to install the CUDA 7.5 drivers on a CentOS 7 SATA DOM. The issue I'm running into is the following:
Installing the NVIDIA display driver...
The driver installation is unable to locate the kernel source. Please make sure that the kernel source packages are installed and set up correctly.
If you know that the kernel source packages are installed and set up correctly, you may pass the location of the kernel source with the '--kernel-source-path' flag.
$ ./cuda_7.5.18_linux.run --kernel-source-path=/usr/src/kernels/3.10.0-327.18.2.el7.x86_64
$ uname -r
$ rpm -q kernel-devel kernel-headers
$ ls /usr/src/kernels
$ ls /usr/src/kernels/3.10.0-327.18.2.el7.x86_64/
arch block crypto drivers firmware fs include init ipc Kconfig kernel lib Makefile mm Module.symvers net samples scripts security sound System.map tools usr virt vmlinux.id
I figure it out. It turns out I needed to install DKMS from the EPEL repository. Here are the commands I used:
sudo yum install epel-release yum install --enablerepo=epel dkms